100155200321 has 8 divisors (see below), whose sum is σ = 114010663104. Its totient is φ = 87091478320.

The previous prime is 100155200317. The next prime is 100155200339. The reversal of 100155200321 is 123002551001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100155200321 - 2² = 100155200317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100155200293 and 100155200302.

It is not an unprimeable number, because it can be changed into a prime (100155200311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197934926 + ... + 197935431.

It is an arithmetic number, because the mean of its divisors is an integer number (14251332888).

Almost surely, 2^100155200321 is an apocalyptic number.

100155200321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100155200321 is a deficient number, since it is larger than the sum of its proper divisors (13855462783).

100155200321 is a wasteful number, since it uses less digits than its factorization.

100155200321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395870391.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 100155200321 its reverse (123002551001), we get a palindrome (223157751322).

The spelling of 100155200321 in words is "one hundred billion, one hundred fifty-five million, two hundred thousand, three hundred twenty-one".